Ordering number : ENA0230 Monolithic Linear IC LA2333T Automotive LAN Transceiver IC Overview In addition to 5V power supply support, the LA2333T contributes to miniaturization and lower costs in end products such as car navigation system by providing seven comparators integrated on the same chip. Features • Transceiver 1. Communication speed: 20kbps. 2. 3.3V I/O control interface. 3. High bus input voltage handling capability (Maximum rating: 18V). 4. Built-in protection circuits. 5. Dual 5.0/3.3V power supply systems. • Comparators 1. Seven built-in comparator circuits. 2. High input voltage handling capability (Maximum rating: 18V). 3. Reference input shared by all 7 channels. 4. Open-collector outputs. Functions • Transceiver a. Transmitter (Current output type driver (3.8mA typical)). b. Receiver (Reception amplifier, waveshaper hysteresis comparator). c. Standby function. • Comparators a. Noninverting comparator function. b. External reference input. Any and all SANYO Semiconductor products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO Semiconductor representative nearest you before using any SANYO Semiconductor products described or contained herein in such applications. SANYO Semiconductor assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all SANYO Semiconductor products described or contained herein. 92706 / 12506 MS OT B8-8605 No.A0230-1/5 LA2333T Specifications Maximum Ratings at Ta = 25°C Parameter Maximum supply voltage Symbol Conditions Ratings Unit VCC max 7.0 V VDD max 7.0 V Vlgc max IVDD+0.3 V Vbus max 18 V Vcmpi max 18 V Vcmpo max VCC V (pin 24, VCC) Maximum supply voltage (pin 4, IVDD) Logic input voltage (pins 1, 2, and 5) Bus input voltage (pins 22 and 23) Comparator input voltage (pins 13 to 20) Comparator output voltage handling (pins 6 to 12) Comparator output current Icmpo max VCC = 5V 5.0 mA/ch 100 mW (pins 6 to 12) Allowable power dissipation Pd max Operating temperature Topr -40 to +85 °C Storage temperature Tstg -50 to +125 °C Recommended Operating Supply Voltages at Ta = 25°C Parameter Symbol Ratings Conditions min Operating supply voltage typ Unit max VCC op 4.75 5.0 5.25 V VDD op 3.0 3.3 3.6 V (pin 24, VCC) Operating supply voltage (pin 4, IVDD) Operating Characteristics at Ta = 25°C, VCC = 5V, IVDD = 3.3V Parameter Symbol Ratings Conditions min typ Unit max VCC Supply Current When the bus is at the high level ICC1 ITXD1 : H, CMPI1 to 7 : L 6.0 10.0 13.0 mA When the bus is at the low level ICC3 ITXD1 : L, CMPI1 to 7 : L 2.5 4.0 5.5 mA ICCSTB ISTBN : L, CMPI1 to 7 : L 1.6 2.6 4.0 mA ICCNSG With the signal input pins open (no connections) 0.6 1.0 1.6 mA In bus standby mode Quiescent current IVDD Supply Current When at the high level IDDH ITXD1 : H, CMPI1 to 7 : L 100 150 200 µA When at the low level IDDL ITXD1 : L, CMPI1 to 7 : L 200 400 800 µA 2.4 3.3 Transceiver Block: Transmitter High-level input voltage VIHD Driver differential output: 120 mV or higher Low-level input voltage VILD Driver differential output: 20 mV or lower Bus (+) output voltage VOHD+ ITXD1 : H, ITXD2 : L Bus (-) output voltage VOHD- ITXD1 : H, ITXD2 : L 1.5 3.5 V BUS (+) reference operating voltage VOP+ ITXD1 : L, ITXD2 : L 2.30 2.45 2.70 V BUS (-) reference operating voltage VOP- ITXD1 : L, ITXD2 : L 2.30 2.45 2.70 V 2.7 3.8 5.0 mA 1 µA High-level output current VHDOUT ITXD1 : H, ITXD2 : L Low-level output leakage current VLDOUT ITXD1 : H, ITXD2 : L V 0 0.5 V 1.5 3.5 V Transceiver Block: Receiver High-level differential input VIHR [IBUS+]-[IBUS-] 65 80 120 mV Low-level differential input VILR [IBUS+]-[IBUS-] 20 40 60 mV High-level output voltage VOHR Load: 47kΩ, 18pF 2.4 3.3 Low-level output voltage VOLR Load: 47kΩ, 18pF 0 Input hysteresis VIHYS VIHR-VILR 20 40 V 0.5 V 60 mV Continued on next page. No.A0230-2/5 LA2333T Continued from preceding page. Parameter Symbol Ratings Conditions min typ Unit max Transceiver Block: Total Delay Time L →H TTD1 H→L TTD2 Compared at the points where ITXD and IRXD are at the 90% value Compared at the points where ITXD and IRXD are at the 10% value 500 800 ns 500 800 ns Transceiver Block : Standby On VILSTB 0 Off VIHSTB 2.4 0.5 3.3 V V Comparator Block : Inputs High-level input voltage Low-level input voltage VREF input voltage VSIH VREF = 1/2 VCC VSIL VREF = 1/2 VCC VSVREF VREF+0.1 1/2 VCC VCC V VREF-0.1 V V Comparator Block : Outputs µA/ch High-level output leakage current ISOH VOUT = 3.3V, RL = 0Ω Low-level output saturation voltage VSOL ISINK = 500µA, RL = 0Ω Turn on time TSON VOUT = 3.3V, RL = 2kΩ 400 ns Turn off time TSOFF VOUT = 3.3V, RL = 2kΩ 100 ns V Comparator Block Package Dimensions unit : mm 3260A No.A0230-3/5 LA2333T System Block Diagram PCA00634 Item Transmitter Pin Description 1 pin, 2 pin Two-input OR logic 22 pin, 23 pin Inter-pin potentials High : [IBUS+]-[IBUS-] ≥ 120mV Low : [IBUS+]-[IBUS-] ≥ 20mV The transmitter must be used with an external terminating resistor (62Ω) connected between pins 22 and 23. Protection circuit operating condition [IBUS+]-[IBUS-] ≥ 8.5V (pin 22 = GND) Input voltage handling capacity: 18V. 5 pin Standby High : Standby mode off Low : Standby mode on Comparators 20 pin Common reference input for CMPI1 to CMPI7 13 to 20 pin Input voltage handling capacity: 18V 6 to 12 pin We recommend 6.8kΩ as the value for the open collector pull-up resistors (Pull-up power supply 3.3V/ISINK = 500µA at RL = 6.8kΩ) No.A0230-4/5 LA2333T Pin Functions Item Bus pins (1) Comparator pins Bus pins (2) Pin No. Pin I/O 1 ITXD1 I Transmission signal input from controller 2 ITXD2 I Transmission signal OR input from controller 3 IRXD O Reception signal output to controller 4 IVDD P 3.3V output system power supply 5 ISTBN I High : Standby off, Low : Standby on 6 CMPO1 O Channel 1 noninverting output (open collector) 7 CMPO2 O Channel 2 noninverting output (open collector) 8 CMPO3 O Channel 3 noninverting output (open collector) 9 CMPO4 O Channel 4 noninverting output (open collector) 10 CMPO5 O Channel 5 noninverting output (open collector) 11 CMPO6 O Channel 6 noninverting output (open collector) 12 CMPO7 O Channel 7 noninverting output (open collector) 13 CMPI7 I Channel 7 input (+) 14 CMPI6 I Channel 6 input (+) 15 CMPI5 I Channel 5 input (+) 16 CMPI4 I Channel 4 input (+) 17 CMPI3 I Channel 3 input (+) 18 CMPI2 I Channel 2 input (+) 19 CMPI1 I Channel 1 input (+) 20 CVREF I Common (to channels 1 to 7) reference input (-) 21 GND P Common ground for the bus and comparator blocks 22 IBUS- I/O Bus (-) transmission signal output/reception signal input 23 IBUS+ I/O Bus (+) transmission signal output/reception signal input 24 VCC P Description Common 5 V power supply for the bus and comparator blocks Specifications of any and all SANYO Semiconductor products described or contained herein stipulate the performance, characteristics, and functions of the described products in the independent state, and are not guarantees of the performance, characteristics, and functions of the described products as mounted in the customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent device, the customer should always evaluate and test devices mounted in the customer's products or equipment. SANYO Semiconductor Co., Ltd. strives to supply high-quality high-reliability products. However, any and all semiconductor products fail with some probability. It is possible that these probabilistic failures could give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire, or that could cause damage to other property. When designing equipment, adopt safety measures so that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective circuits and error prevention circuits for safe design, redundant design, and structural design. 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Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO Semiconductor believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of January, 2006. Specifications and information herein are subject to change without notice. PS No.A0230-5/5